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Computer Systems 1 Fundamentals of Computing COMHN113 HNC/HND Computing Programme About the module… HNC/HND Level 1 Module Basics of Computer Systems Components & Functions Fundamentals of Computing Technology Hardware & Software Assessed through: Coursework (75%)

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computer systems 1 fundamentals of computing

Computer Systems 1Fundamentals of Computing

COMHN113

HNC/HND Computing Programme

about the module
About the module…
  • HNC/HND Level 1 Module
  • Basics of Computer Systems
    • Components & Functions
    • Fundamentals of Computing Technology
    • Hardware & Software
  • Assessed through:
    • Coursework (75%)
      • Group Task Assignment (50%)
      • Practical / Individual Assignment (25%)
    • End of module Class Test (25%)

Computer Systems 1 (2004 - 2005)

about the lecturer
About the lecturer…
  • Stuart Cunningham
    • Room B126
    • s.cunningham@newi.ac.uk
    • Tel: 01978 293583
    • Notes and information found at:
      • www.newi.ac.uk/cunninghams/
    • Scottish!
      • If I say something you don’t understand please ask! (Generally a good idea, not just because of the accent)

Computer Systems 1 (2004 - 2005)

module aims
Module Aims
  • Provide a theoretic and practical introduction to computer systems
  • Introduce essential computing principles and terminology
  • Introduce the basic hardware and software components of a computer
  • Consider the range of computing technologies and scope of computer applications
  • Investigate the structure and function of a computer operating system
  • Provide an introduction to and practical experience of different computing platforms

Computer Systems 1 (2004 - 2005)

module learning outcomes
Module Learning Outcomes
  • By the end of this module, you will be able to:
  • Describe the basic structure of a computer
  • Understand and use essential computing terms, descriptors, abbreviations and units
  • Discuss the range of computing technologies currently available
  • Discuss the range of applications of modern computing
  • Identify and work with key hardware and software components in a computer system
  • Outline the function and structure of an operating system
  • Compare different computer platforms from a hardware and software perspective

Computer Systems 1 (2004 - 2005)

module learning outcomes6
Module Learning Outcomes
  • Transferable / Key Skills
  • By the end of this module, you will be able to:
    • Work effectively as a member of a group
    • Conduct essential research into an allocated topic
    • Produce a written report
    • Undertake practical work

Computer Systems 1 (2004 - 2005)

what is a computer system
What is a Computer System?
  • Heavy metal/plastic box?
  • Collection of wires and electronic bits?
  • “That thing in the corner of the room”?
  • Typewriter on steroids?
  • Life enhancing object?
  • Something to play games on?
  • Most dominant force in the calculator world?
  • The thing you check e-mail with?
  • Stress-inducing, harmful, evil device that wants to take over the world!!!!
  • Something else to dust?

Computer Systems 1 (2004 - 2005)

computers
Computers
  • Computers are in widespread use today:
    • Business
    • Education
    • Home
  • Computers used for many things:
    • Office work
    • Science and Research
    • Games and Entertainment
    • Multimedia production
    • Data storage
    • …and loads more...

Computer Systems 1 (2004 - 2005)

computer system
Computer System
  • Computer System consists of two main areas of functionality:
    • Hardware
      • Physical components to a computer system
      • Stuff you can touch and hold
      • Wires, transistors, keyboard, printer etc.
    • Software
      • Instructions given to the hardware
        • Programs or applications to run on the hardware
        • Sets of instructions
        • The stuff you can do useful things with
        • E.g.- Windows, Dreamweaver, MS Office, etc.

Computer Systems 1 (2004 - 2005)

the computer

INPUT

PROCESS

OUTPUT

The Computer
  • The computer is a machine
    • ‘TOM’ – (Totally Obedient Moron)
    • Carries out instructions
    • Consists of electronic components
  • Performs three main tasks
    • Accepts INPUT
    • Performs a PROCESS on the input
    • Produces OUTPUT from the process

Computer Systems 1 (2004 - 2005)

input process output
Input Process Output
  • Input
    • Telling the computer what to do
    • [User] “Make me a cup of coffee!”
    • e.g.- Mouse or keyboard
  • Process
    • Computer carries out a task in response to instructions
    • [Computer] Mixes water and coffee granules. Pour into cup.
    • e.g.- Processor
  • Output
    • Computer displays the results of task
    • [Computer] Hands user coffee cup
    • e.g.- Monitor

Computer Systems 1 (2004 - 2005)

hardware
Hardware
  • Essential Hardware Components
    • Input
      • Keyboard, mouse
    • Processing
      • Central Processing Unit (CPU)
      • E.g.- Intel Pentium n, AMDAthlon
    • Output
      • Monitor, printer
    • Memory
      • Temporary data storage, with fast retrieval
      • E.g.- RAM (Random Access memory)
    • Permanent storage
      • A form of media to store data for a long term
      • E.g.- Hard disk drive
      • E.g.- ROM (Read Only Memory)

Computer Systems 1 (2004 - 2005)

hardware13
Hardware
  • Employing RAM and backing store
    • RAM = Random Access Memory
      • Sometimes called ‘main memory’
      • Used for temporary storage
        • Contents are erased when power is off
      • Very fast access to data
        • Any byte can be accessed randomly
    • Backing store
      • Permanent place to keep important data
      • Commonly a hard disk drive
        • Allows reading and writing of data
      • Could also be a ROM (Read Only Memory) chip
        • Once written to can only be read in future

Computer Systems 1 (2004 - 2005)

hardware14

RAM

INPUT

PROCESS

OUTPUT

Backing Store

Hardware
  • Employing RAM and backing store

Computer Systems 1 (2004 - 2005)

hardware15
Hardware
  • Peripheral Hardware Components
    • Input
      • Scanner, microphone, light pen
    • Processing
      • Graphics card, sound card
    • Output
      • Speakers, plotter, digital projector
    • Memory
      • Extra RAM, VRAM
    • Permanent storage
      • Zip drives, memory sticks, floppy disks
    • Other Devices
      • Modem, NIC, DVD-R, DV-Camera

Computer Systems 1 (2004 - 2005)

software
Software
  • Operating Systems
    • Acts as an interface between the user and the capabilities (hardware & software) of the computer
    • Need the OS to run other applications
    • Need OS to control hardware
    • Organises files and directories
    • Is the ‘front end’ of the computer
    • The environment the user interacts with
    • Responds to commands issued by the user

Computer Systems 1 (2004 - 2005)

software17
Software
  • Operating Systems
    • Command Line Interface (CLI)

Computer Systems 1 (2004 - 2005)

software18
Software
  • Operating Systems
    • Graphical User Interface (GUI)

Computer Systems 1 (2004 - 2005)

software19
Software
  • Application Software
    • Word processing
    • Spreadsheets
    • Databases
    • Web browsing
    • Email client
    • Internet hosting
    • Desktop Publishing (DTP)
    • Integrated Development Environment
    • Games (?)

Computer Systems 1 (2004 - 2005)

types of computer
Types of Computer
  • Personal Computer (PC)
    • Single-user computer
    • Standalone
  • Supercomputer
    • Very fast computer which can carries out huge amounts of instructions per second
  • Mainframe
    • A powerful computer which can be used by lots of users at the same time

Computer Systems 1 (2004 - 2005)

computer systems 1
Computer Systems 1
  • What you know now:
    • More about this module
    • More about your lecturer
      • (more importantly, where to find module notes)
    • What a computer is
    • Basic make-up of a computer system
      • Input
      • Process
      • Output
    • Employing RAM & Backing Store
    • Overview of Software
      • Operating Systems
      • Applications

Computer Systems 1 (2004 - 2005)